Frequency range/tuning step frequency modulation (FM) : 64-108MHz; Intelligent stepper. 0.01MHz / 0.1MHz; Can customize the frequency coverage: standard: 87-108MHz(for China Europe and the United States); Germany: 87.5-108 MHz; In China most of the campus radio Russia: 64-108 MHz Japan: 76-108MHz short wave (SW) : 2300-21950KHz. Smart step 1KHz / 5KHz medium wave (MW) : 522-1620KHz. Smart step 1KHz / 9KHz suitable for Asia Africa and Europe 520-1710KHz. Smart step 1KHz / 10KHz (for American) long wave (LW) : 153-513KHz; Smart step 1 KHz/ 9KHz; Noise sensitivity frequency modulation (FM) limited (S/N = 30 dB): Better than 3 microvolt short wave (SW) (S/N = 26 db) : better than 20 microvolt medium wave (MW) (S/N = 26 db) : better than that of 1 mv/m long wave (LW) (S/N = 26 db) : better than 10 mv/m; High frequency selectivity (FM) > 60 db (plus or minus 150 KHz) short wave (SW) st13 60 db (BW = 3 KHz + / - 5 KHz) medium wave (MW) st13 60 db (BW = 3 KHz plus or minus 9 KHz) long wave (LW) > 60 db (BW = 3 KHz plus or minus 9 KHz); FM stereo degrees of separation: better than 35dB; The output power distortion (10%) of 180Mw or higher; Memory for frequency modulation (FM) : wave (MW) : in 100 100 long wave (LW) : 100 short wave (SW) : 250; Double wake model: radio rings at buzzer sooner; Static current frequency modulation (FM) < 25 mA medium wave/long wave (MW/LW) < 30 mA short wave (SW) < 30 mA shutdown < 80 uA; Horn specifications: 16 euro 500 mw 57 mm diameter paper cone speaker; Headphones specifications: 32 the diameter of 3.5 mm stereo headphones; Battery (available separately) : 3 section R6 (5) the power converter is dry and rechargeable batteries (available separately) : USB specification (DC 5 v current 250mA or higher)